Abstract
The objective of this research is to develop a rehabilitation technique which can be easily installed to existing steel frames with minimal-disturbance. An unique approach to design a supplemental load-resisting system using light tension-only rods is adopted. Key structural features of the proposed technique are to reduce tensile stress at critical sections as bottom flange near beam-column connection and to add supplemental stiffness, strength and damping without significantly changing the properties of a original framing. Numerical simulations and experimental tests were conducted to verify the behavior of the developed technique.
